公开(公告)号：US20080124578A1

公开(公告)日：2008-05-29

申请号：US11946333

申请日：2007-11-28

Applicant: Yong-su KIM ,  Sung-chul LEE

Inventor： Yong-su KIM ,  Sung-chul LEE

IPC: G11B5/00

CPC classification number: G11C11/14 ,  G11C19/0808

Abstract: An apparatus for moving a magnetic domain wall and a memory device using a magnetic field application unit are provided. The apparatus for moving a magnetic domain wall includes a magnetic layer having a plurality of magnetic domains; current supply units that are disposed on both sides of the magnetic layer and supply current to the magnetic layer; and a magnetic field application unit that is disposed on at least one surface of the magnetic layer and applies a magnetic field to the magnetic layer.

Abstract translation: 提供一种使用磁场施加单元移动磁畴壁和存储装置的装置。 用于移动磁畴壁的装置包括具有多个磁畴的磁性层; 电流供给单元，其设置在磁性层的两侧并向磁性层供给电流; 以及设置在所述磁性层的至少一个表面上并向所述磁性层施加磁场的磁场施加单元。

公开(公告)号：US20090122449A1

公开(公告)日：2009-05-14

申请号：US12169291

申请日：2008-07-08

Applicant: Yong-su KIM ,  Kook-hyun SUNWOO ,  Kyoung-won NA

Inventor： Yong-su KIM ,  Kook-hyun SUNWOO ,  Kyoung-won NA

IPC: G11B5/33 ,  B05D5/12

CPC classification number: G11B5/3116

Abstract: A magnetic write head includes a main pole, a return yoke forming a magnetic path with the main pole, a side shield formed at both sides of the main pole, and a shield gap layer formed between the side shield and the return yoke. The side shield and the return yoke have portions connected to each, and are separated from each other by the shield gap layer in an area except for the portions which contact. A first gap layer formed of a nonmagnetic insulation material is formed between both sides of the main pole and the side shield. A gap is formed between an end portion of the main pole and an end portion of the return yoke and a second gap layer is formed in the gap with a nonmagnetic insulation material.

Abstract translation: 磁写头包括主极，形成与主极的磁路的返回磁轭，形成在主电极两侧的侧屏蔽以及形成在侧屏蔽和返回磁轭之间的屏蔽间隙层。 侧护罩和返回轭具有连接到每个的部分，并且在除接触部分之外的区域中通过屏蔽间隙层彼此分离。 由主磁极和侧屏两侧形成由非磁性绝缘材料形成的第一间隙层。 在主极的端部和返回轭的端部之间形成间隙，并且在间隙中用非磁性绝缘材料形成第二间隙层。

公开(公告)号：US20080310053A1

公开(公告)日：2008-12-18

申请号：US11937269

申请日：2007-11-08

Applicant: Yong-su KIM

Inventor： Yong-su KIM

IPC: G11B5/82

CPC classification number: G11B5/82 ,  B82Y10/00 ,  G11B5/59688 ,  G11B5/743

Abstract: A magnetic recording medium includes a disk substrate and a magnetic recording layer formed on one surface or both surfaces of the disk substrate. The magnetic recording layer includes at least one pattern area forming a plurality of data tracks in which a position for magnetic recording is patterned with a magnetic body and at least one continuous area formed of a continuous magnetic body, and at least a part of a servo pattern for following the data track is recorded in the continuous area. A method of recording a servo pattern on a magnetic recording medium includes determining a center position of the data track and a start position of the continuous area and recording a servo pattern for following the data track in the continuous area with respect to center position of the data track and the start position of the continuous area. A magnetic head for recording a servo pattern on a magnetic recording medium includes a data writing head for recording data, a servo writing head for recording the servo pattern, and a reading head for reproducing the data.

Abstract translation: 磁记录介质包括形成在盘基片的一个表面或两个表面上的盘基片和磁记录层。 磁记录层包括形成多个数据磁道的至少一个图形区域，其中磁记录位置用磁体图案化，以及由连续磁体形成的至少一个连续区域，以及伺服机构的至少一部分 跟踪数据轨迹的模式记录在连续区域中。 一种在磁记录介质上记录伺服图案的方法包括：确定数据磁道的中心位置和连续区域的开始位置，并记录与数据磁道相关的连续区域中的跟踪数据磁道的伺服模式 数据轨迹和连续区域的起始位置。 用于在磁记录介质上记录伺服图案的磁头包括用于记录数据的数据写入头，用于记录伺服图案的伺服写入头和用于再现数据的读取头。

公开(公告)号：US20080278852A1

公开(公告)日：2008-11-13

申请号：US12028025

申请日：2008-02-08

Applicant: Yong-su KIM ,  Kook-hyun Sunwoo ,  Kyoung-won Na

Inventor： Yong-su KIM ,  Kook-hyun Sunwoo ,  Kyoung-won Na

IPC: G11B5/33

CPC classification number: G11B5/1278 ,  G11B5/3116

Abstract: A perpendicular magnetic recording head and a method of manufacturing said perpendicular magnetic recording head are provided. The perpendicular magnetic recording head has a main pole, a coil, which applies a magnetic field to the main pole, and a return pole constituting a magnetic circuit together with the main pole. The main pole has a back pole around which the coil is wound and a front pole contacting the back pole. The back pole and the front pole are formed on the same plane.

Abstract translation: 提供垂直磁记录头和制造所述垂直磁记录头的方法。 垂直磁记录头具有向主极​​施加磁场的主极，线圈和与主极一起构成磁路的返回极。 主极具有一个后极，线圈缠绕在该杆上，前极接触后极。 后极和前极形成在同一平面上。

公开(公告)号：US20100147792A1

公开(公告)日：2010-06-17

申请号：US12708341

申请日：2010-02-18

Applicant: Hoo-san LEE ,  Young-hun IM ,  Yong-su KIM

Inventor： Hoo-san LEE ,  Young-hun IM ,  Yong-su KIM

IPC: G11B5/127

CPC classification number: G11B5/1871 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

Abstract: A magnetic recording head and a method of manufacturing the same. The magnetic recording head includes a stack containing a main pole and a return pole. The stack includes a first magnetic layer having a groove formed therein; an insulating layer covering a surface of the groove; and a second magnetic layer pattern filling the groove covered with the insulating layer.

Abstract translation: 磁记录头及其制造方法。 磁记录头包括一个包含一个主极和一个返回极的堆叠。 堆叠包括其中形成有凹槽的第一磁性层; 覆盖所述槽的表面的绝缘层; 以及填充由绝缘层覆盖的沟槽的第二磁性层图案。

公开(公告)号：US20090316295A1

公开(公告)日：2009-12-24

申请号：US12483330

申请日：2009-06-12

Applicant: Yong-su KIM ,  Jae-chul SHIM ,  Cheol-soon KIM

Inventor： Yong-su KIM ,  Jae-chul SHIM ,  Cheol-soon KIM

IPC: G11B5/00

CPC classification number: G11B5/59644

Abstract: A method of servo writing for each track of a magnetic recording medium divided into a plurality of circular tracks including performing a phase adjustment operation by controlling a phase of a recording current according to a skew angle formed by a magnetic head and a track of the magnetic recording medium, and writing a servo pattern when the magnetic recording medium is magnetized using a magnetic head so as to have a magnetized pattern corresponding to a servo pattern.

Abstract translation: 一种用于分割成多个圆形轨迹的磁记录介质的每个轨道的伺服写入的方法，包括通过根据由磁头和磁道的轨道形成的倾斜角来控制记录电流的相位来执行相位调整操作 记录介质，并且当使用磁头磁化磁记录介质以便具有对应于伺服图案的磁化图案时，写入伺服图案。